Design Of The Ventilation Control System Of Underground Park Based On MSP430

Nowadays, with developing of the consume level, the garage has been one of the factors which determine people choose the house where the live, and one way the district upgrade its quality. Underground garage need intellectualized network control ventilation system.According to this requirement, this thesis combine an actual scientific research task of shanghai air-condition equipment co; ltd, put forward a resolution method based on inspect technology, intelligent control technology, master-slaver supervisory network technology, to compose an underground garage ventilation system to realize supervising an adjusting the concentration of carbon monoxide of underground garage.Because of the non-linearity between the vehicle quantity and the concentration of carbon monoxide in the work process, it is difficult to construct accurate mathematical model, so the author, in allusion to the characteristic of underground garage, adopts automatic control method in this system, depend on prehuman experience.In order to solve saving energy sources problem, the author aim at the characteristic of underground garage, utilizing the result of the research, designed a intelligent ventilation control system which is based on RS-485 bus master-slaver supervisory network, which the controller is MSP430 micro-controller produced by TI. The system can do obtain environment parameters (concentration of CO) of the underground garage through a micro-controller linked with the sensors. Then the data are transmitted into the upper computer and with automatic control method transformed into time length signal, with which a motor is controlled to adjust the concentration of carbon monoxide, then regulate the inner environment of the underground garage.This thesis has five parts.In part one, the author introduced the survey and shortcoming of existing underground garage ventilation system and the benefit of the no-duct inductive ventilation system.In part two, the author analyzed the characteristic and applied environment of underground garage ventilation system, designed the collectivity project of no-duct inductive system.In part three, the author recommended the hardware parts of ventilation system, which includes a data acquisition module, a data storage module, a display module, a communication module, etc.According to the hardware system based on MSP430 single-chip computer, the software system is also developed in part four of this paper, such as a data acquisition program, a data storage program, a display program, a communication program, etc.To enhance the rationality and the reliability of the system, in part five the author analyzed and researched the system'performance of anti-jamming.Through comprehensive applications in Beijing, shanghai, Xiamen etc, the ventilation control system has steady work performance, to validate the design's rationality and the reliability of the underground garage. All of those indicated the validity and application value of this system, compared with conventional ventilation system of underground garage. At the same time, research of air pollution control in a underground garage ventilation system is thus recognized as a significant topic.